Remove Solidity documents and replace them with Era ones (#545)

(cherry picked from commit dc469f8)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Use this template for reporting issues
+title: ''
+labels: bug
+assignees: ''
+---
+
+### 🐛 Bug Report
+
+#### 📝 Description
+
+Provide a clear and concise description of the bug.
+
+#### 🔄 Reproduction Steps
+
+Steps to reproduce the behaviour
+
+#### 🤔 Expected Behavior
+
+Describe what you expected to happen.
+
+#### 😯 Current Behavior
+
+Describe what actually happened.
+
+#### 🖥️ Environment
+
+Any relevant environment details.
+
+#### 📋 Additional Context
+
+Add any other context about the problem here. If applicable, add screenshots to help explain.
+
+#### 📎 Log Output
+
+```
+Paste any relevant log output here.
+```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,21 @@
+---
+name: Feature request
+about: Use this template for requesting features
+title: ''
+labels: feat
+assignees: ''
+---
+
+### 🌟 Feature Request
+
+#### 📝 Description
+
+Provide a clear and concise description of the feature you'd like to see.
+
+#### 🤔 Rationale
+
+Explain why this feature is important and how it benefits the project.
+
+#### 📋 Additional Context
+
+Add any other context or information about the feature request here.

.github/pull_request_template.md

@@ -0,0 +1,19 @@
+# What ❔
+
+<!-- What are the changes this PR brings about? -->
+<!-- Example: This PR adds a PR template to the repo. -->
+<!-- (For bigger PRs adding more context is appreciated) -->
+
+## Why ❔
+
+<!-- Why are these changes done? What goal do they contribute to? What are the principles behind them? -->
+<!-- Example: PR templates ensure PR reviewers, observers, and future iterators are in context about the evolution of repos. -->
+
+## Checklist
+
+<!-- Check your PR fulfills the following items. -->
+<!-- For draft PRs check the boxes as you complete them. -->
+
+- [ ] PR title corresponds to the body of PR (we generate changelog entries from PRs).
+- [ ] Tests for the changes have been added / updated.
+- [ ] Documentation comments have been added / updated.

CONTRIBUTING.md

@@ -1,5 +1,43 @@
 # Contribution Guidelines
 
-Please see our contribution guidelines in [the Solidity documentation](http://solidity.readthedocs.io/en/latest/contributing.html).
+Hello! Thanks for your interest in joining the mission to accelerate the mass adoption of crypto for personal
+sovereignty! We welcome contributions from anyone on the internet, and are grateful for even the smallest of fixes!
 
-Thank you for your help!
+## Ways to contribute
+
+There are many ways to contribute to the ZK Stack:
+
+1. Open issues: if you find a bug, have something you believe needs to be fixed, or have an idea for a feature, please
+   open an issue.
+2. Add color to existing issues: provide screenshots, code snippets, and whatever you think would be helpful to resolve
+   issues.
+3. Resolve issues: either by showing an issue isn't a problem and the current state is ok as is or by fixing the problem
+   and opening a PR.
+4. Report security issues, see [our security policy](./github/SECURITY.md).
+5. [Join the team!](https://matterlabs.notion.site/Shape-the-future-of-Ethereum-at-Matter-Labs-dfb3b5a037044bb3a8006af2eb0575e0)
+
+## Fixing issues
+
+To contribute code fixing issues, please fork the repo, fix an issue, commit, add documentation as per the PR template,
+and the repo's maintainers will review the PR.
+[here](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork)
+for guidance how to work with PRs created from a fork.
+
+## Licenses
+
+If you contribute to this project, your contributions will be made to the project under both Apache 2.0 and the MIT
+license.
+
+## Resources
+
+We aim to make it as easy as possible to contribute to the mission. This is still WIP, and we're happy for contributions
+and suggestions here too. Some resources to help:
+
+1. [zkSync Era docs!](https://era.zksync.io/docs/)
+2. Company links can be found in the [repo's readme](README.md)
+
+## Code of Conduct
+
+Be polite and respectful.
+
+### Thank you

README.md

@@ -1,19 +1,32 @@
-# The Solidity Contract-Oriented Programming Language
-[![Join the chat at https://gitter.im/ethereum/solidity](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/ethereum/solidity?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Build Status](https://travis-ci.org/ethereum/solidity.svg?branch=develop)](https://travis-ci.org/ethereum/solidity)
+# zkSync Era: Solidity Compiler
 
-## Useful links
-To get started you can find an introduction to the language in the [Solidity documentation](https://solidity.readthedocs.org). In the documentation, you can find [code examples](https://solidity.readthedocs.io/en/latest/solidity-by-example.html) as well as [a reference](https://solidity.readthedocs.io/en/latest/solidity-in-depth.html) of the syntax and details on how to write smart contracts.
+[![Logo](eraLogo.svg)](https://zksync.io/)
 
-You can start using [Solidity in your browser](https://ethereum.github.io/browser-solidity/) with no need to download or compile anything.
+zkSync Era is a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum without compromising on security
+or decentralization. As it's EVM-compatible (with Solidity/Vyper), 99% of Ethereum projects can redeploy without
+needing to refactor or re-audit any code. zkSync Era also uses an LLVM-based compiler that will eventually enable
+developers to write smart contracts in popular languages such as C++ and Rust.
 
-The changelog for this project can be found [here](https://github.com/ethereum/solidity/blob/develop/Changelog.md).
+This repository contains the Solidity compiler and language tuned for EraVM.
 
-Solidity is still under development. So please do not hesitate and open an [issue in GitHub](https://github.com/ethereum/solidity/issues) if you encounter anything strange.
+## License
 
-## Building
-See the [Solidity documentation](https://solidity.readthedocs.io/en/latest/installing-solidity.html#building-from-source) for build instructions.
+Solidity is licensed under [GNU General Public License v3.0](LICENSE.txt).
 
-## How to Contribute
-Please see our contribution guidelines in [the Solidity documentation](https://solidity.readthedocs.io/en/latest/contributing.html).
+Some third-party code has its [own licensing terms](cmake/templates/license.h.in).
 
-Any contributions are welcome!
+## Official Links
+
+- [Website](https://zksync.io/)
+- [GitHub](https://github.com/matter-labs)
+- [Twitter](https://twitter.com/zksync)
+- [Twitter for Devs](https://twitter.com/zkSyncDevs)
+- [Discord](https://join.zksync.dev/)
+
+## Disclaimer
+
+zkSync Era has been through extensive testing and audits, and although it is live, it is still in alpha state and
+will undergo further audits and bug bounty programs. We would love to hear our community's thoughts and suggestions
+about it!
+It's important to note that forking it now could potentially lead to missing important
+security updates, critical features, and performance improvements.

SECURITY.md

@@ -0,0 +1,74 @@
+# Security Policy
+
+We truly appreciate efforts to discover and disclose security issues responsibly!
+
+## Vulnerabilities
+
+If you'd like to report a security issue in the repositories of matter-labs organization, please proceed to our
+[Bug Bounty Program on Immunefi](https://era.zksync.io/docs/reference/troubleshooting/audit-bug-bounty.html#bug-bounty-program).
+
+## Other Security Issues
+
+We take an impact-first approach instead of a rules-first approach. Therefore, if you believe you found the impactful
+issue but can't report it via the Bug Bounty, please email us at
+[[email protected]](mailto:[email protected]).
+
+### PGP Key
+
+The following PGP key may be used to communicate sensitive information to developers:
+
+Fingerprint: `5FED B2D0 EA2C 4906 DD66 71D7 A2C5 0B40 CE3C F297`
+
+```
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